Amazon has no fear about entering the health business, say former leaders

Aaron Martin helped launch Amazon's self-publishing business, as the director for Kindle and Print on Demand. Now, he runs digital innovation at Providence St. Joseph Health. With a group of engineers and designers, Martin has launched such initiatives as Express Care, a service for same-day urgent care visits. He also invests in medical-tech start-ups through the hospitals' venture unit, Providence Ventures.